The 28-year-old Spaniard could be put on the stand, with former club Real Zaragoza's 2011 clash with Levante being probed. Prosecutors have spent over three years looking into the match at Levante, which ended in a 2-1 win for relegation threatened Zaragoza, but Herrera has denied any involvement in match-fixing.
Zaragoza’s then-manager Javier Aguirre faces trial along with others including the club’s former sporting director Antonio Prieto and its ex-owner Agapito Iglesias. The trial, now being seen as a certainty in Spain, is expected to be at least six months away.
33 other footballers including Atletico Madrid captain Gabi are at the centre of the alleged match-fixing, with regional newspaper 'Las Provincias' claiming the 42 people involved could face prison sentences ranging from six months to four years if convicted.
Anti-corruption prosecutor Alejandro Luzon has named Herrera in the case as someone who is alleged to have received two cash sums totalling almost £80,000. But the former Athletic Bilbao player said back in 2014: "I have never and never will have anything to do with the manipulation of the results of matches. If I am ever called to testify in a judicial hearing, I will be delighted to attend."
After his name was brought up in the investigation once again, the Manchester United star responded in a statement: "As I stated back in 2014 when this issue was raised, I have never had and will never have anything to do with manipulating match results.
"If I am ever called to testify in a judicial hearing, I will be delighted to attend as my conscience is totally clear," he added. "I love football and I believe in fair play, both on and off the pitch."